92 lines
3.0 KiB
C++
92 lines
3.0 KiB
C++
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#include "toast.h"
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#include <QDialog>
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#include <QHBoxLayout>
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#include <QLabel>
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#include <QEvent>
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class ToastDlg: public QDialog
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{
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private:
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QLabel* mLabel;
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QLabel* mCloseBtn;
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protected:
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bool eventFilter(QObject *obj, QEvent *ev) override
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{
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if (obj == mCloseBtn) {
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if (ev->type() == QEvent::MouseButtonRelease) {
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accept();
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}
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}
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return QObject::eventFilter(obj, ev);
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}
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public:
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ToastDlg()
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{
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auto layout = new QHBoxLayout;//水平布局
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mLabel = new QLabel;
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mLabel->setStyleSheet("color: white; background:transparent");//red
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layout->addWidget(mLabel, 1);//stretch = 1
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mCloseBtn = new QLabel;
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//mCloseBtn->setPixmap(QPixmap(":/res/img/close.png"));
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mCloseBtn->installEventFilter(this);
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mCloseBtn->setStyleSheet("background:transparent");
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layout->addWidget(mCloseBtn);
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setLayout(layout);
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setWindowFlag(Qt::FramelessWindowHint);//生成一个无边界窗口。用户不能通过窗口系统移动或调整无边界窗口的大小。
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setAttribute(Qt::WA_ShowWithoutActivating, true); //Show the widget without making it active.
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//setAttribute(Qt::WA_TranslucentBackground, true); // 背景透明
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}
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void show(Toast::Level level, const QString& text)
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{
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QPalette p = palette();
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//QColor(int r, int g, int b, int a = 255)
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//Constructs a color with the RGB value r, g, b, and the alpha-channel (transparency) value of a.
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p.setColor(QPalette::Window, QColor(0, 0, 0, 200));
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if (level == Toast::INFO) {
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p.setColor(QPalette::Window, QColor(0x35, 0x79, 0xd5, 0x88));// 蓝色
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} else if (level == Toast::WARN) {
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p.setColor(QPalette::Window, QColor(0xff, 0xff, 0x33, 0x88));
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} else { //ERROR
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p.setColor(QPalette::Window, QColor(0xff, 0x0, 0x0, 0x88));
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}
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setPalette(p);//set widget's palette
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mLabel->setText(text);
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setWindowFlag(Qt::WindowStaysOnTopHint);//通知窗口系统该窗口应保持在所有其他窗口的顶部。
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QDialog::show();
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}
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};//~class ToastDlg end
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Toast::Toast()//构造函数
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{
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dlg_ = new ToastDlg;
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}
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//返回一个实例(instance)
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Toast &Toast::instance()
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{
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static Toast thiz;//这种实例化方法会自动回收内存
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return thiz;
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}
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void Toast::show(Toast::Level level, const QString &text)
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{
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dlg_->show(level, text);//ToastDlg.show方法
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if (timer_id_ != 0) { //int mTimerId
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//如果之前已经开启了一个定时器，先把他关掉
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killTimer(timer_id_);
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}
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timer_id_ = startTimer(5000);//启动定时器，每2s触发定时器事件，直到调用killTimer
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}
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//重写定时器事件回调函数
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void Toast::timerEvent(QTimerEvent *event)
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{
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killTimer(timer_id_);
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timer_id_ = 0;
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dlg_->accept();//隐藏模态对话框
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//mDlg->hide();
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}
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